The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2008
Filed:
Mar. 31, 2005
Hideyo Tanaka, Tokyo, JP;
Hidesato Hagiwara, Tokyo, JP;
Takeshi Itoi, Tokyo, JP;
Takumi Saito, Tokyo, JP;
Koichi Minato, Tokyo, JP;
Hideyo Tanaka, Tokyo, JP;
Hidesato Hagiwara, Tokyo, JP;
Takeshi Itoi, Tokyo, JP;
Takumi Saito, Tokyo, JP;
Koichi Minato, Tokyo, JP;
Toyo Ink Mfg. Co., Ltd., Tokyo, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Abstract
A color filter is provided with red, green and blue color filter segments. When chromaticity coordinates (x, y) in a chromaticity diagram of XYZ color specification system are measured with the color filter being sandwiched between two polarizers, a chromaticity (x, y) of parallel-transmitted light and a chromaticity (x, y) of orthogonal-transmitted light satisfy the following formula (1):Δ=[()+()]<0.130  (1)A liquid crystal display device is provided with such a color filter.